Operating Guide

United States
Tel: [phone]
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Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.comwww.tnb.com
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
38
Connectors & Grounding — Blackburn
®
Grounding Systems
3840-TB
Ground Clamps
CAT. NO. DESCRIPTION
10105* For Single Conductors #4 sol. to 2/0 str.
10109** For Single Conductors 2/0 sol. to 4/0 str.
* UL
®
Listed #4 to 2/0 AWG copper.
** UL
®
Listed 2/0 to 4/0 AWG copper/aluminum.
CSA File No. 2884.
3844
For armored and
unarmored wire
3849
3826
961
For radio, motor frame and
equipment grounding
31215
Disconnect static ground clamp
and lug, straight-type (cable not
supplied), UL not applicable
CAT. NO. MATERIAL
WATER PIPE,
COPPER TUBING SIZE
GRD.
ROD SIZE
3826
†
M.I.
1
⁄2",
3
⁄4"
1
⁄2"–1"
3846
†
Bronze
1
⁄2",
3
⁄4"
1
⁄2"–1"
3849• Brass
1
⁄2"–1" O.D.
3840-TB* M.I.
1
⁄2",
3
⁄4" or 1"
†
For unarmored copper wire #6, #4.
• For copper and aluminum conductors; for 14 thru 2 cu. unarmored copper wire —
corrosive and outdoor use. UL
®
approved for direct burial.
* #8 thru #4 AWG. Not CSA Certified.
Ground Clamp
Ground Clamps for K&L
Grade Copper Tubing Only
CAT. NO. GROUND WIRE RANGE
WATER PIPE &
GROUND ROD SIZE/
DESC.
3844* #8–#4
1
⁄2"–1"
3888
†
#8–#4
1
⁄2"–1" also rebar 4–10
961 #8
3
⁄8"–1"
962** #8
3
⁄8"–2"
963** #8
3
⁄8"–3"
CAT. NO.
DESCRIPTION/CABLE SIZE
31215 Strain-Relief Grounding Lug, #6–#2
31216 Grounding Clamp, 1" Hook-Type, #6–#2
31253 Grounding Clamp, 1-
1
⁄2" Hook-Type, #6–#2
31217 Ground Clamp, 1" Straight-Type, #6–#2
31224 Grounding Clamp, 1-
1
⁄2" Straight-Type, #6–#2
31230 Wing Screw only
* With steel screws.
** With bronze screws, not CSA Certified — or UL
®
Listed.
†
UL
®
approved for direct burial. Silicon bronze screws.
Cable Tray Ground Clamp
Material: Malleable iron
Standard Finish: Zinc plated
1211_1836_TNB_TNB_Power Connection & Control Cat31_r7.indd 38 2/24/14 3:27 PM